1Family:welding 2Name:welding riser pipe 3Material:stainless steel 4Usage:gas/oil piping etc 5Brand: ... Shantin or OEM service Other name:riser pipe,stainless steel pipeShantin Fabrication Workshop is designed to produce steel ... , acid cleaning, alkali wash, passivating, painting(spray coating)Quality control:RT, MT, PT, UT machines, Universal testing machine, Impactor, Sclerometer, ...